Abdominal complications of ascariasis in childhood.

Objective: Complications of ascariasis are a significant cause of abdominal pain in pediatric emergencies, especially where it is endemic. A literature review was conducted with the aim of improving diagnostic and therapeutic approaches for these patients.

Data Sources: A PubMed search was conducted using the key terms "ascariasis complications" and "hepatobiliary ascariasis".

Torsion of Granulosa Cell Tumor of the Ovary in a Preschool Patient: A Rare Cause of Acute Abdomen.

BACKGROUND Granulosa cell tumor of the ovary is very rare in childhood; its most common clinical manifestation is isosexual precocious puberty. Clinical presentation as acute abdomen due to pain and ovarian torsion is rare, but a granulosa cell tumor must be suspected in a patient with this acute presentation and signs of early puberty. Adult-type granulosa cell tumor is an even rarer occurrence in children.

Torsion of a Communicating Hydrocele Presented as Acute Scrotum: A Case Report and Literature Review.

Torsion of a communicating hydrocele is extremely rare, and the cause is unclear. We report the case of a 3-year-old boy referred to us with acute scrotum. Operative findings revealed torsion of a communicating hydrocele with a 360-degree rotation of the distal end.

Choledochal cyst in childhood: review of 30 cases.

Objective: To analyze and discuss the clinical data, diagnosis and treatment of a number of patients with cystic dilatation of the common bile duct of a Brazilian pediatric hospital.

Methods: We analyzed 30 patients treated at the Martagão Gesteira Institute of Pediatrics and Child Care of the Federal University of Rio de Janeiro for 23 years ,with statistical analysis of epidemiological data, clinical manifestations, diagnosis, treatment and postoperative outcome.

Results: We observed a marked female predominance (73.

Morphologic study of embryonic development of rat duodenum through a computerized three-dimensional reconstruction: critical analysis of solid core theory.

To date, intrinsic obstructions of the duodenum have been explained by the "solid core" theory, described by Tandler in 1902 (Morphol Jahrb 29:187-216, 1902). This study aimed to evaluate the epithelial occlusion of rat duodenum during embryonic development, through optical microscopy and computerized three-dimensional reconstruction. The Wistar rat embryos used in this study had 13, 14, 15, and 16 days of gestation.

Hepatobiliary effects of cholic and lithocholic acids: experimental study in hamsters.

Etiopathogenesis of biliary atresia remains unknown. Among several theories, one proposes that the disorder may be caused by the toxic effect of monohydroxy bile acids on fetal and neonatal hepatobiliary system. In this paper we evaluated toxic effects produced by ingestion of cholic acid, a trihydroxy bile acid, and lithocholic acid, a monohydroxy bile acid in the hepatobiliary system of a hamster during gestational and perinatal periods.